From chewing to chomping to grinding, teeth suffer from a lifetime of repeated mechanical stress. It makes sense, then, that enamel is one of the hardest natural materials.

A research collaboration has developed a novel fluorescent nanosensor capable of rapidly detecting indole-3-propionic acid (IPA), an emerging biomarker linked to gut health and disease. The breakthrough is described in the team's paper, "Fluorescent Nanosensor for Indole-3-Propionic Acid Detection in Gut Health Monitoring," published in the journal Advanced Healthcare Materials.

Spinal cord injuries can have devastating consequences for those affected. Nerve cells in the spinal cord rarely regenerate naturally, while scarring often prevents the regrowth of nerve fibers. Modern therapies attempt to influence implanted stem cells using electrical stimulation to promote the growth of new nerve cells. This approach has several drawbacks: it requires implanted electrodes, and the transplanted cells do not always survive or integrate properly into the existing tissue.

Lung cancer remains one of the world's deadliest cancers, yet despite decades of effort to develop new drugs, many fail because they don't stay in the body long enough to be effective or because they damage healthy organs. Now, Adelaide University researchers have developed a novel nanoparticle "delivery vehicle" that precisely targets cancer drugs to the lungs while helping to limit harmful side effects—a breakthrough that could reshape how the disease is treated.